alc880 Realtek Semiconductor Corporation, alc880 Datasheet - Page 32

• Manufacturer Part Number: alc880
• Description: 7.1 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.
This section describes the Verbs and Parameters supported by various widgets in the ALC880(D). If a
verb is not supported by the addressed widget, it will respond with 32 bits of ‘0’.
8.1. Verb – Get Parameters (Verb ID=F00h)
The ‘Get Parameters’ verb is used to get system information and the function capabilities of the HDA
codec. All the parameters are read-only. There are a total of 15 ID parameters defined for each widget,
some parameters are supported only in a specific widget. Refer to section 7.4.1 Command Verb Format,
page 19, for detailed information about supported parameters.
8.1.1.
8.1.2.
7.1 Channel High Definition Audio Codec
Get Parameter Command Format
Codec Response Format
Note: The Root Node (NID=00h) supports this parameter.
Codec Response Format
Note1: The Audio Function Group Node (NID=01h) supports this parameter.
Note2: Only supported by the ALC880, ALC880D, ALC880-LF, and ALC880D-LF.
Bit [31:28]
Note: If the parameter ID is not supported, the returned response is 32 bits of ‘0’.
CAd=X
31:16
15:0
31:0
Bit
Bit
Supported Verbs and Parameters
Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Parameter – Subsystem ID (Verb ID=F00h, Parameter ID=01h)
Node ID=00h
Bit [27:20]
Vendor ID=10ECh (Realtek’s PCI vendor ID)
Device ID=0880h
SubSystem ID=0880h
Description
Description
The SubSystem ID is used to identify the function group
Table 19. Parameter – Subsystem ID (Verb ID=F00h, Parameter ID=01h)
Table 18. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Verb ID=F00h
Table 17. Verb – Get Parameters (Verb ID=F00h)
Bit [19:8]
Parameter ID[7:0]
Payload Bit [7:0]
22
Track ID: JATR-1076-21
Codec Response Format
Response [31:0]
32-bit Response
ALC880 Series
Datasheet
Rev. 1.4